Fish
Coho salmon (silver salmon)
Salmón coho (plateado)
Oncorhynchus kisutch
Guide by Captain Big Joe (Joe Arias)

At a glance
Most are around 28 in (71 cm).
From the surface down to 820 ft (250 m).
First light is best.
2 areas
Know it
Spot it, size it up and learn its habits.
- Identification
Bright silver salmon with small black spots on the back and only on the UPPER lobe of the tail, and white gums at the base of the teeth.
- Typical size
Most are around 28 in (71 cm).
- Maximum size
Up to about 3.5 ft (108 cm) long and 34 lb (15.2 kg). Source: FishBase
- Diet
Young fish in rivers eat mainly insects. At sea they first eat tiny drifting crustaceans, then larger prey such as jellyfish, squids and fishes.
- Behavior
It lives in the ocean or lakes and returns to its home river to spawn. Young fish stay in deep parts of rivers and become territorial, and at sea they first stay near the coast before moving farther out.
Find it
Where, when and how deep to look.
- Where to find it
Found from Central & Northern California and Oregon & Washington.
- Habitat
Ocean off Oregon and Washington, the Strait and Puget Sound; rivers from Northern California north.
- Depth
From the surface down to 820 ft (250 m).
- Fishing depth
20–150 ft trolling offshore, following the bait; shallower in bays and river mouths.
- Best season
Ocean fishing in summer; river mouths and rivers from late summer through fall. Seasons are short and set every year.
- Best time
First light is best.
- Best tides
In river mouths and estuaries, the incoming tide brings fresh fish in.
- Best weather / conditions
Calm seas offshore; cool, overcast days inshore.
Bait & gear
What to tie on and what to throw.
- Best bait
Herring and anchovies.
- Best artificial lures
Hoochies, spoons and bucktail flies trolled fast near the surface; spinners in the rivers.
- Tackle setup
8½–10½ ft salmon (mooching) rod with a level-wind or mooching reel; downriggers or divers to get deep.
- Hook size
Barbless 2/0–5/0 hooks where required; herring rigs, hoochies and spinners.
- Line
20–30 lb mono.
- Leader
20–30 lb fluorocarbon, 4–6 ft behind a flasher.
BigJoe's setup for Coho salmon (silver salmon)
The rod, reel, line and lures BigJoe would use.
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Catch it
Step by step, from first cast to landing.
Step-by-step: how to catch it
- Go where it lives: Ocean off Oregon and Washington, the Strait and Puget Sound; rivers from Northern California north.
- Rig up: 8½–10½ ft salmon (mooching) rod with a level-wind or mooching reel; downriggers or divers to get deep. 20–30 lb fluorocarbon, 4–6 ft behind a flasher.
- Pick your bait: Herring and anchovies. Lures: Hoochies, spoons and bucktail flies trolled fast near the surface; spinners in the rivers.
- Fish it: Troll faster and shallower than for chinook, often with no weight at all; watch for birds and bait.
- Time it: First light is best. In river mouths and estuaries, the incoming tide brings fresh fish in.
- Fishing techniques
Troll faster and shallower than for chinook, often with no weight at all; watch for birds and bait.
- BigJoe's tip
Coho love speed and flash — when they're in, troll fast in the top 30 ft.
- Catch and release
Catch and release: wet your hands, keep the fish in the water when you can, and release it quickly. Use circle hooks and a dehooker.
Clean & cook
Is it good to eat, and how to prepare it.
- Edibility
Excellent eating — one of the best-tasting fish in its range.
- Cleaning
Bleed and ice it right away. Fillet, then remove the skin and any dark bloodline.
- Cooking suggestions
Mild, orange meat, a bit leaner than chinook: grill, bake or smoke.
Stay safe & legal
Safety, rules and taking care of the fishery.
- Safety warnings
River bars can be deadly — check the bar report and Coast Guard restrictions before crossing.
- Regulations
Many areas allow only hatchery coho (with a clipped adipose fin) to be kept. Seasons are set each year. Check ODFW or WDFW. Licenses, size and bag limits and seasons are set by each state — the California Department of Fish and Wildlife (wildlife.ca.gov), Oregon Department of Fish and Wildlife (myodfw.com) and Washington Department of Fish and Wildlife (wdfw.wa.gov) — together with NOAA Fisheries and the Pacific Fishery Management Council. Rules change often, and many areas are no-take marine reserves: check before you go.
- Conservation
Keep only what you'll eat, release the rest quickly, and follow size and bag limits.
Where it's found
Tap an area to open its fishing map.